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advantages. Additional non-visible solar strategies have been designed into the home to maximise passive solar effectiveness. The passive approach is carried on through the physical appearance, solar configuration, orientation, space arrangement and on-site/ off-site new and existing landscaping strategies.

The homes mechanical system is also specifically designed for advanced sustainability and offers the highest percentage efficiency possible. The HVAC system is designed for the cubic volume of the homes interior space and consists of round metal ductwork for increased efficiency and ease of cleaning. In all; the HVAC system will operate way above average; typically 63% in the United States. The HVAC system installed in this home will operate at 98% efficiency; saving large

amounts of electricity per day. In addition, the HVAC air ducting system can be cleaned easily upon the home owners request using traditional commercial spiders, enhancing air quality over a greater amount of time and reducing the time and cost of cleaning the air delivery system.  

The home boosts a modest insulation package; with expansive closed cell foam insulation in the exterior 31/2” wall cavities a R25 is possible overall with the exterior wall assembly. This home will be the first zero energy home that UDC has designed that utilizes an exterior 2x4 wall assembly. Earlier zero energy homes were designed with insulated concrete foam (ICF) walls (one of the highest insulation maxi misers presently commercially available) With the completion of this home, UDC will prove